Distribution of 24 elements in the internal organs of normal males and the metallic workers in Japan.

Concentrations of 24 elements in the internal organs from 12 healthy males and from 7 metallic workers in Japan were recorded. Markedly high concentrations of chromium were found in the respiratory organs (e.g., hilar lymph node and lung) of chromium plating and chromate refining workers, as well as in spleen, liver, kidney, and heart. High chromium concentrations were also found in one male who had terminated his employment 30 years prior to his death. In addition, high concentrations of nickel and tin were also found in the above-mentioned workers. Marked accumulations of titanium, the main element of paints, were found in the respiratory organs, spleen, liver, kidney, and heart of an airplane painter. The painter also had high concentrations of chromium, nickel, and cobalt in some of his organs. It was also noted that high concentrations of silicon, aluminum, and titanium-elements of rock-occurred in a stone mason.